Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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One in five long-term love relationships began with one or both partners being involved with others.
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40% of people who are rejected in romantic love slip into clinical depression.
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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